How Many Primary Types of RNA Play Roles in Protein

Question

How many primary types of RNA play roles in protein synthesis within cells?​
A)​two
B)three
C)four
D)five
E)​six

Accepted Answer

There are three primary types of RNA involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

How many primary types of RNA play roles in protein synthesis within cells?​